Hello,
do have some problems with SPI at an IMX8MP. I tried latest 2023.01.
I have a device attached to SPI, that needs to be configured with an
SSPI command at u-boot level. Please help me debug that, I am clueless.
sspi command returns: Invalid bus 0
my config file:
CONFIG_SPL_DM_SPI=y
CONFIG_CMD_SPI=y
CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_MXC_SPI=y
dt: (tested with both types of cs-gpios)
&ecspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1>;
cs-gpios = <0>, <&gpio5 9 GPIO_ACTIVE_LOW>;
// cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
status = "okay";
};
pinctrl_ecspi1: ecspi1grp {
fsl,pins = <
MX8MP_IOMUXC_ECSPI1_MISO__ECSPI1_MISO 0x00000104
MX8MP_IOMUXC_ECSPI1_MOSI__ECSPI1_MOSI 0x00000104
MX8MP_IOMUXC_ECSPI1_SCLK__ECSPI1_SCLK 0x00000104
MX8MP_IOMUXC_ECSPI1_SS0__GPIO5_IO09 0x00000104
>;
};
Turning on the log-level:
drivers/core/lists.c:201- lists_bind_fdt() bind node spi@30820000
drivers/core/lists.c:222- lists_bind_fdt() - attempt to match
compatible string 'fsl,imx8mp-ecspi'
drivers/core/lists.c:222- lists_bind_fdt() - attempt to match
compatible string 'fsl,imx51-ecspi'
drivers/core/lists.c:250- lists_bind_fdt() - found match at
'mxc_spi': 'fsl,imx51-ecspi' matches 'fsl,imx51-ecspi'
u-boot=> sspi
drivers/core/uclass.c:338-uclass_find_device_by_seq() 0
drivers/core/uclass.c:346-uclass_find_device_by_seq() - 1 'spi@30820000'
drivers/core/uclass.c:353-uclass_find_device_by_seq() - not found
drivers/spi/spi-uclass.c:431- _spi_get_bus_and_cs() Invalid bus 0 (err=-19)
What am I doing wrong or is this a bug? Thanks ahead for any hint.
Best regards,
Elmar
PS: Got SPI working at v2022.04 but an other issues occur, not sure how
severe it is. At v2022.04 the SPI command is send, but at very first
call I get "Enable clock-controller@30380000 failed".
